Dawwwwww
And I think this is the thing that really blows my mind. All of the Hololive girls have demonstrated in the past they go above and beyond in compensating artists. How many times have we seen a fanartist make something, only for someone like Ame or Kiara to swoop in and PAY them to take proper possession of the fanwork? Fuck, wasn't her copy of this song originally a fan animation using either the OG cover? Or an AI cover? And Kiara saw it and said "Well shit, looks like I have a new song to officially cover!", paid the artist, and took possession of the work?